def check(self, instance):
if not self.cadvisor_url:
cadvisor_url = instance.get("cadvisor_url", None)
detect_cadvisor_url = instance.get("kubernetes_detect_cadvisor",
False)
if not cadvisor_url:
if detect_cadvisor_url:
kubernetes_connector = utils.KubernetesConnector(
self.connection_timeout)
host = kubernetes_connector.get_agent_pod_host()
cadvisor_url = "http://{}:4194".format(host)
else:
exception_message = "Either cAdvisor url or kubernetes detect cAdvisor must be set when " \
"monitoring a Kubernetes Node."
self.log.error(exception_message)
raise Exception(exception_message)
self.cadvisor_url = "{}/{}".format(cadvisor_url,
"api/v2.0/stats?count=1")
dimensions = self._set_dimensions(None, instance)
try:
host_metrics = requests.get(self.cadvisor_url,
self.connection_timeout).json()
except Exception as e:
self.log.error(
"Error communicating with cAdvisor to collect data - {}".
format(e))
else:
self._parse_send_metrics(host_metrics, dimensions)
def check(self, instance):
dimensions = self._set_dimensions(None, instance)
del dimensions['hostname']
if not self.auto_detect_endpoints:
metric_endpoint = instance.get("metric_endpoint", None)
if not metric_endpoint:
self.log.error("metric_endpoint must be defined for each instance")
return
endpoint_dimensions = instance.get("default_dimensions", {})
endpoint_dimensions.update(dimensions)
self.report_endpoint_metrics(metric_endpoint, endpoint_dimensions)
else:
self.kubernetes_labels = instance.get('kubernetes_labels', KUBERNETES_LABELS)
if not self.kubernetes_connector:
self.kubernetes_connector = utils.KubernetesConnector(self.connection_timeout)
if self.detect_method == "pod":
if not self.kubelet_url:
try:
host = self.kubernetes_connector.get_agent_pod_host()
self.kubelet_url = "http://{}:10255/pods".format(host)
except Exception as e:
self.log.error("Could not obtain current host from Kubernetes API {}. "
"Skipping check".format(e))
return
metric_endpoints = self._get_metric_endpoints_by_pod(dimensions)
# Detect by service
else:
metric_endpoints = self._get_metric_endpoints_by_service(dimensions)
for metric_endpoint, endpoint_dimensions in six.iteritems(metric_endpoints):
endpoint_dimensions.update(dimensions)
self.report_endpoint_metrics(metric_endpoint, endpoint_dimensions)
def check(self, instance):
dimensions = self._set_dimensions(None, instance)
del dimensions['hostname']
if not self.auto_detect_endpoints:
metric_endpoint = instance.get("metric_endpoint", None)
if not metric_endpoint:
self.log.error(
"metric_endpoint must be defined for each instance")
return
endpoint_dimensions = instance.get("default_dimensions", {})
endpoint_dimensions.update(dimensions)
self.report_endpoint_metrics(metric_endpoint, endpoint_dimensions)
else:
self.kubernetes_labels = instance.get('kubernetes_labels',
KUBERNETES_LABELS)
if not self.kubernetes_connector:
self.kubernetes_connector = utils.KubernetesConnector(
self.connection_timeout)
# Check if we need to clear pod cache so it does not build up over time
if self.k8s_pod_cache is not None:
if not self.cache_start_time:
self.cache_start_time = time.time()
else:
current_time = time.time()
if (current_time - self.cache_start_time) > 86400:
self.cache_start_time = current_time
self.k8s_pod_cache = {}
self.initialize_pod_cache()
if self.detect_method == "pod":
if not self.kubelet_url:
try:
host = self.kubernetes_connector.get_agent_pod_host()
self.kubelet_url = "http://{}:10255/pods".format(host)
except Exception as e:
self.log.error(
"Could not obtain current host from Kubernetes API {}. "
"Skipping check".format(e))
return
prometheus_endpoints = self._get_metric_endpoints_by_pod(
dimensions)
# Detect by service
else:
prometheus_endpoints = self._get_metric_endpoints_by_service(
dimensions)
for prometheus_endpoint in prometheus_endpoints:
self.report_endpoint_metrics(
prometheus_endpoint.scrape_endpoint,
prometheus_endpoint.dimensions,
prometheus_endpoint.whitelist,
prometheus_endpoint.metric_types,
prometheus_endpoint.report_pod_label_owner)
def prepare_run(self):
"""Set up Kubernetes connection information"""
instance = self.instances[0]
self.host = instance.get("host", None)
derive_host = instance.get("derive_host", False)
if not self.host:
if derive_host:
self.kubernetes_connector = utils.KubernetesConnector(self.connection_timeout)
self.host = self.kubernetes_connector.get_agent_pod_host()
else:
exception_message = "Either host or derive host must be set when " \
"running Kubernetes plugin."
self.log.exception(exception_message)
raise Exception(exception_message)
def check(self, instance):
if not self.cadvisor_url:
cadvisor_url = instance.get("cadvisor_url", None)
detect_cadvisor_url = instance.get("kubernetes_detect_cadvisor",
False)
if not cadvisor_url:
if detect_cadvisor_url:
kubernetes_connector = utils.KubernetesConnector(
self.connection_timeout)
host = kubernetes_connector.get_agent_pod_host()
cadvisor_url = "http://{}:4194".format(host)
else:
exception_message = "Either cAdvisor url or kubernetes " \
"detect cAdvisor must be set when " \
"monitoring a Kubernetes Node."
self.log.error(exception_message)
raise Exception(exception_message)
self.cadvisor_url = "{}/{}".format(cadvisor_url,
"api/v2.0/stats?count=1")
dimensions = self._set_dimensions(None, instance)
try:
host_metrics = requests.get(self.cadvisor_url,
self.connection_timeout).json()
except Exception as e:
self.log.error(
"Error communicating with cAdvisor to collect data - {}".
format(e))
else:
# Retrieve machine info only once
if not self.cadvisor_machine_url:
# Replace path in current cadvisor_url
result = urlparse(self.cadvisor_url)
self.cadvisor_machine_url = urlunparse(
result._replace(path="api/v2.0/machine"))
try:
machine_info = requests.get(
self.cadvisor_machine_url).json()
except Exception as ex:
self.log.error(
"Error communicating with cAdvisor to collect machine data - {}"
.format(ex))
else:
self._parse_machine_info(machine_info)
self._parse_send_metrics(host_metrics, dimensions)
def prepare_run(self):
"""Set up Kubernetes connection information"""
instance = self.instances[0]
host = instance.get("host", None)
derive_api_url = instance.get("derive_api_url", None)
if not host:
if derive_api_url:
self.kubernetes_connector = utils.KubernetesConnector(
self.connection_timeout)
else:
exception_message = "Either Kubernetes API url (host and port)" \
" or derive_api_url=True must be set" \
" when running Kubernetes API plugin."
self.log.error(exception_message)
raise Exception(exception_message)
else:
kubernetes_api_port = instance.get("kubernetes_api_port", "8080")
self.kubernetes_api = "http://{}:{}".format(
host, kubernetes_api_port)
# (C) Copyright 2017 Hewlett Packard Enterprise Development LP # coding=utf-8 from monasca_agent.collector.checks import utils kubernetes_connector = utils.KubernetesConnector(3) print(kubernetes_connector.get_agent_pod_host(return_host_name=True))
